角極坐標 的英文怎麼說
中文拼音 [jiǎojízuòbiāo]
角極坐標
英文
angular polar coordinate-
Since pixel - level contrapose pixel coordinate, trigonometric function must be used to translate polar coordinates to pixel coordinate when the curve is described by polar coordinate. so research is very little on algorithms for generating this sort of curve by now
由於逐點是針對象素坐標系而言，而對極坐標系下描述的曲線，在轉換到象素坐標系時要用到三角函數運算，因此目前很少提到對極坐標曲線生成演算法的研究。Secondly, the various conic arcs and conies are generated by the rational triangular bezier and the b - spline method in polar coordinates system
其次，給出圓錐曲線弧及其補弧的三角有理b zier表示；以及任意角度二次曲線弧的極坐標b樣條表示。The one used the actual locomotor orderliness gained by reverse seeking to amend the contour curve of the cam. the new academic contour curve of the cam and tracks of polar and right angle coordinates of the center of reamer were presented
第一種是根據反求得到的實際從動件運動規律，修正了開牙凸輪輪廓曲線，給出了新的凸輪理論輪廓曲線和刀具中心極坐標軌跡和直角坐標軌跡。Three imaging methods are introduced : range - doppler imaging, projection tomography imaging, polar - doppler imaging. several interpolation methods are introduced, and their simulation results are compared, and cubic spline interpolation is proved to be the best
介紹了最基本的三種成像方法：直角坐標距離-多普勒成像、投影層析成像和極坐標距離-多普勒成像。Gets the point at a specified angle and distance from a given point
以基點為坐標，按極坐標角和定長獲得另一點坐標。The properties of the key optical and electrical devices and the controlling mode in the system are put forwards. using the polar coordinate lines with different directions and the circulars with the same axis can be written together. by using he - cd laser ( 442nm ) as writing light source, the system can directly write line with width 05 # m on a sample
本文的主要目的是建立了一種極坐標和直角坐標相結合的激光直寫系統的原理樣機，探討系統的各部分器件的基本性能要求，為今後研製高精度激光直寫系統做好工作基礎，分析了激光直寫系統中關鍵器件的性能要求，基本控制方式，實現了極坐標方式下，任意旋轉角度直線圖形與共心圓環的光刻。The maximum likelihood registration algorithm based on earth - centered earth - fixed ( ecef ) coordinate system considers the geometry of the global, and eliminates errors introduced by the stereographic projection. the simulation result based on this registration algorithm shows that the satisfied angular biases can be preliminarily obtained. 5
基於地心坐標系的傳感器極大似然配準演算法考慮到了地球曲率的影響，克服了立體投影法的缺陷；採用這種演算法，我們可以把不同傳感器局域坐標系的量測轉化到地心坐標系中，變成統一的量測，便於融合中心做進一步的處理；模擬結果表明這種演算法可以得到較為滿意的角度偏差。This technique avoids computing inverse log - polar mapping ilpm to preserve the quality of the watermarked image, and avoids exhaustive search to save computation time and reduce false detection. experimental results demonstrate that the digital watermarking technique is invariant and robust to rotation, scaling, and translation transformation
在研究中發現，圖像在空域中的旋轉對應于該對數極坐標域中沿著角坐標的位移圖像在空域中的按比例縮放對應于該對數極坐標域中沿著對數半徑坐標的位移而圖像在空域中的水平位移對該對數極坐標域沒有影響。This paper provides the general equations of the theoretical contour line and the actual contour line of roller translation follower and roller oscillating follower disc cam in the polar coordinates system and the rectangular coordinates system, respectively. the equations are not only fit for the different layouts of the relative position of follower and cam, but also fit for the different types of cam contour
分別給出了滾子直動從動件和滾子擺動從動件盤形凸輪的理論廓線及實際廓線在極坐標系與直角坐標系下的通用方程，它們對于從動件與凸輪相對位置的不同布局方式及凸輪輪廓的不同類型均適用At the end, the vibration responses are displayed in polar diagram synthetically, in which the displacement, the static offset and the deflection angle of rotor could be shown altogether
提出用極坐標表徵轉子振動特性的方法，可以更直觀、全面地反映轉子的振動幅度、機動飛行時的靜態偏移以及偏擺角。This paper investigates the two interrelated problems from the following two parts : first part, a polar coordinate quasi - geostrophic barotropic model, a cartesian coordinate quasi - geostrophic barotropic model, a quasi - geostrophic baroclinic model, and a quasi - geostrophic barotropic vorticity model under the condition of non - stationary typhoon circulation are designed within the framework of advection dynamics, and systematically dynamic studies on effects of different physical processes on the intensity of typhoons are conducted
研究內容分兩個部分。第一部分，在平流動力學框架內設計了一個極坐標準地轉正壓模式、一個直角坐標中準地轉正壓模式、一個準地轉斜壓模式、以及一個非定常臺風環流條件下準地轉正壓渦度模式，對引起臺風強度變化的不同物理過程進行了較系統的動力學研究。Argument of polar coordinates
極坐標的輻角By way of theoretical analysis, the relationship between settling angle on a planar curve and the polar coordinates of the same curve was obtained, and the polar equation of a curve that passed through two fixed points and had the specified directions at these two points was also derived
摘要通過理論分析與數學計算獲得了平面曲線上任一點處安放角與曲線極坐標方程的關系，同時導出了通過平面上兩定點且在兩定點處有給定方向的曲線的極坐標插值方程。The contents of the course include the elastic problems and associated solution procedure ; the basic concepts and assumptions of elasticity ; the solution of a planar elastic problem defined in a rectangular coordinate ; the matrix expression of basic equations of a planar elastic problem ; the solution of a planar problem defined in a polar coordinate ; the basic equations and solution procedure of a three - dimensional elastic problem ; bending of a plate ; and the variational principles of energy
本課程的主要內容包括:彈性力學問題及其求解思想;彈性力學中的基本概念及基本假定;彈性力學平面問題的直角坐標解答;平面問題基本方程的矩陣表示;平面問題的極坐標解答;彈性力學空間問題的基本方程及其解法;薄板的彎曲;能量變分原理等等Data quality control including sidelobe contamination, data ' s filling and smoothing, nyquist velocity of bistatic doppler radar, interpolation of velocities from a polar grid to a cartesian grid and problems found during simulating data and solusion to them
介紹了數據質量控制，包括旁瓣污染、資料的填補與平滑、雙基地最大不模糊速度、從極坐標到直角坐標的轉換以及在模擬風場過程中發現的問題和解決辦法。In normalization of the iris image preprocessing stage, the iris image is normalized into a 64 1024 grey pixel image. after normalization, the normalized image is divided into three parts and then these parts are divided into eighteen bands
接著，在虹膜圖像預處理的歸一化演算法中，本文採用直角坐標與極坐標映射理論把定位后的圖像歸一化到一個64 1024的灰度矩陣中。分享友人